Terephthalic acid

2,4',5-Tribromobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 59080-36-3

beta-Endosulfan, 10.0 µg/ml, Ethyl acetate, 10ml

PAH Standard (20 ppm)